OSMCha short for OpenStreetMap Changeset Analyzer is a web tool to help mappers analyze and review data changes to OSM. The objective of the tool is to help detect vandalism and act on bad changes to the map data.

Development

Changeset Explorer

OSMCha is an advanced changeset explorer. Changesets on OpenStreetMap have timestamp, editor used, changeset comment, bounding box of the changeset, username of the author and other metadata . OSMCha stores these changeset metadata and allows searching through them.

Along with the metadata available from OpenStreetMap, OSMCha allow

Filters

The user interface of OSMCha allows multiple user input of metadata values for searching through the changeset database.